by Kastro
Paper/Archive/CVE-2026-16259

CVE-2026-16259

Unknown Uix UserCenter — Uix UserCenter <= 1.0.3 - Unauthenticated Privilege Escalation

EPSS 0.5%CVSS 9.8
critical.is priorityof 100
38
CVSS 9.8 (ADP)9.8 / 10 × 3029.4Not in CISA KEV+300.0EPSS percentile 42.7.427 × 208.5No public exploit+100.0SSVC exploitation: none+100.0
Description · from the CVE record

The Uix UserCenter WordPress plugin through 1.0.3 does not verify that the account being modified through an unauthenticated profile-update action belongs to the requester, and it authenticates that action with a token whose signing key is hardcoded and identical across every install, allowing unauthenticated attackers to forge a token for any user, overwrite an administrator's email and password, and take over the account.

Affected

ProductAffectedFixed inSource
Uix UserCenter≤ 1.0.3–CNA

Scores by source

CISA ADP9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CISA ADPSSVCExploitation: none · Automatable: yes · Technical impact: total

References

exploitwpscan.com/vulnerability/e551128c-c9b1-4e6a-a2aa-92830b7a4887